Great! At least one problem is solved. Bypassing the OEM vacuum line is a good idea (and inexpensive). If you need to measure vacuum run engine at medium idle for 3 - 5 minutes to bring engine to normal operating temperature. Vacuum at engine should be 13 inches. Here is the whole shabang from the tech manual:

• If vacuum is 33 cm (13 in.) of mercury movement or
greater, vacuum supply from engine is ok. If a steering problem remains, check vacuum f ilters, and solenoids at actuators.
• If vacuum is less than 33 cm (13 in.) of mercury
movement, retest vacuum using straight fitting connected
directly from the engine to the vacuum gauge.
• If vacuum is 33 cm (13 in.) of water movement or
greater, vacuum supply from engine is ok. If a steering
problem remains, check vacuum filters, and solenoids at
actuators.
• If vacuum supply from engine is ok, remove fender
deck and test for vacuum at the tee fitting (G) near the
actuators. Disconnect one actuator hose and test for
vacuum.
• If the vacuum is within specification, the lines are
good.